ᴛʜᴇ ᴄᴏsᴛ ᴏғ ᴠɪsɪᴛɪɴɢ ᴇᴀʀᴛʜ ғᴏʀ ᴀʟɪᴇɴs ᴄᴀɴ ʙᴇ ᴛᴏᴏ ᴀsᴛʀᴏɴᴏᴍɪᴄᴀʟ